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Shion, the ‘Hero of Darkness’. He was said to be the strongest hero ever. He believed one thing, and that was his current party members. “I’ll defeat the Demon Lord with this party!” That is what he swore to do, but a tragedy occurs. He was painfully betrayed by the girls that he trusted. He barely held onto his life, but the incident left a deep scar in his heart. He gave up on living, and while he was wandering around in a forest, looking for a way to die, a single monster appeared in front of him. “Will you kill me, please?” The monster asked Shion, who was still strong, despite losing his powers. What Shion, who wanted to die as well, did was―
There has always been 16 heroes. Among them is the Darkness Hero, Shion, the strongest hero in history. Shion has only one thing he believes in--his party members. However, those girls he believed in cruelly betrayed him. Is there a way for Shion to overcome his deep pain and keep on living?
A loser salaryman who always says "I wish I could win the lottery..." is reincarnated into a world where he is the strongest evil dragon. He is very content to live his life in a forest with slimes that look up to him. One day, Evil king's subordinates suddenly come attacking him and cruelly kill the slimes. He gets enraged, and avenges the deaths quickly, however, decides to leave the forest in order to never have any more casualties. Weak but kind and sentimental, a former loser salaryman begins a carefree adventure fantasy!